Improvement in weighing-scales



W. H. MOCORMIGK.

S nu 1 a G S g n l1 h g il 6 Patented Nov. 1, 1870.

iti/ttt iatta ,zand @affito WILLIAM II. MCOORMICK, OF MUNGIE, INDIANA,ASSIGNOR 'IO HIMSEIJF AND JOHN T. WILLIAMS, -OF SAME PLAGF.

ALetters Patent No. 108,807, dated November 1, 1870.

IMPROVEMENT IN WEIGHINGl-SCALES.A

The Schedule referred to in these Letters Patent and making part of thesame.

To all whom Iit may concern Be it known that I, WILLIAM H. McCormick, ofMuncie, in the county of Delaware and State of Indiana, have invented anew and useful Improvement in Counter-Scales; and do hereby declare thatthe following description forms a full and exact specifica tion of myinvention, reference being had to the accompanying drawing which forms apart thereof, and to the letters of reference marked thereon.

Figure l is a side elevation; t

Figure 2, a top view, with the platform removed; and

Figure 3, a longitudinal central section.

The subject of this invention is au improved plai form counterscales,the platform resting upon a frame-work similar to the Fairbanks method,but differing therefrom in the devices for indicating the weightapplied.

The invention consists in thc devices for indicating the weight; in theemployment of a sliding gauge on top of the dial; in the combination andarrangement with the platform, levers, and indicating mechanism,

. of a rod bearing a receptacle for weighing ounces and the fractionalparts thereof; and in the general construction and arrangement of parts,as hereinafter described.

I will now proceed to give a detail description ot myinvention,-referring to the accompanying drawing, in which similarletters of reference indicate like parts in the several figures.

In the drawing- A represents a platform, provided on its under side withpendants a a, which rest upon studs b b l), projecting fromthe sides ofa frame-work, suspended by means of links c o within a box or casing,(l.

Ilhis frame-work upon which the platform rests is composed of twol partsor levers I B, the form of which is clearly shown in figs. 2 and 3.These levers or parts are pivoted together at tl d.

The lever B is extended forward within the part (1" of the box orcasing, and is connected, by means of a link, e, or a cord or chain,with the part f of a weight,

, I), which swings on au axis, g, journaled in standards h, attached tothe casing.

The weight I) is provided with 'a toothed segment, i, which engages witha pinion, j, on the shaft carrying the indicators, and which has itsbearingsin the standards it.

rIhe indicators or pointers le L are applied to each ond of t-hepinion-shaft, and move over the faces of dials l l, graduated torepresent pounds and the fractional parts thereof, as desired.

a: represents a. stop, to limit the movement of the weight I).

On top the easing, between the digli, agauge, m, i." fitted to slide ina staple or other suitable retainer, a. This gauge is T-shapcd, asclearly shown in fig.

2, and its ends are bent down over the upper edges of the dials, as seenin fig. l. Ih'e gauge is used when weighing an empty vessel preparatoryto iillingtthe same. rlhc empty vessel heilig pla-ced upon the platformits weight is indicated on the dials, and the gauge is moved so that itsoverlapping ends shall cover the mark or graduation indicated by thepointers. rIhen, when the vessel has been filled,l the weight of thecontents is reckoned from the point indicated by the gauge.

' In the extreme end of the part B of the platform frame-work is fixed avertical rod, o, which passes up through au opening in the casing of thescales, and carries at its top a receptacle, p, which is used forweighing ounces and the fractional parts thereof. To explain On accountof the increased leverage which the receptacle p has over the platform,an ounce placed inthe former will cause the same movement of thepointers lt k as a pound will when resting on the platform. By thisprovision the scales are accommodated for use by druggists andsilvcrsmiths, wlfo frequent] y and generally have to weigh in quantitiesof less than pounds and ounces.

These scales can be made to weigh to any multiple desired, by theapplication of au index-hand to denote the number of revolutions made;

The simplicity of my scales, and their entire freedom from springs,which are -always unreliable, combine to made the invention highlyuseful tothe public generally.

Having thus described my invention,

What I claim, and desire to secure by Letters Patent, is

l. Ihe combination of one or lnore graduated dials, l, vand pointers k,and the segment, pinion, and shaft, by means of which they are operated,with the levers I5 I', connection e, platform A, rod o, and receptaclep, all constructed, arranged, and operating substantially as hereindescribed.

2. The construction of the gauge on, -and its application substantiallyas shown and described with relation to'the dial or dials, as and forthe purpose set forth.

"3. rlhe arrangement of the suspended levers B B', connection c,weighted segmenti, pinionj, and shaft, with one or more indicators, oneor more graduated dials, l, gauge m, rod o and receptacle p, audplatform A, all within and upon a casing, C G', and operatingsubstantially as described.

rlhe above specification of my invention signed by me this 16th day ofJune, 1870, in the presence of two subscribing witnesses.

WM. H. MCCORMICK.

\Vitnesses:

S. It. SUTTON, (1W. Moolen.

